1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
/* $OpenBSD: ospfe.h,v 1.23 2020/01/02 10:16:46 denis Exp $ */
/*
* Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _OSPFE_H_
#define _OSPFE_H_
#define max(x,y) ((x) > (y) ? (x) : (y))
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
TAILQ_HEAD(ctl_conns, ctl_conn) ctl_conns;
struct lsa_entry {
TAILQ_ENTRY(lsa_entry) entry;
union {
struct lsa_hdr *lu_lsa;
struct lsa_ref *lu_ref;
} le_data;
unsigned short le_when;
unsigned short le_oneshot;
};
#define le_lsa le_data.lu_lsa
#define le_ref le_data.lu_ref
struct lsa_ref {
LIST_ENTRY(lsa_ref) entry;
struct lsa_hdr hdr;
void *data;
time_t stamp;
int refcnt;
u_int16_t len;
};
struct nbr_stats {
u_int32_t sta_chng;
};
struct nbr {
LIST_ENTRY(nbr) entry, hash;
struct event inactivity_timer;
struct event db_tx_timer;
struct event lsreq_tx_timer;
struct event ls_retrans_timer;
struct event adj_timer;
struct nbr_stats stats;
struct lsa_head ls_retrans_list;
struct lsa_head db_sum_list;
struct lsa_head ls_req_list;
struct in6_addr addr; /* ip6 address */
struct in_addr id; /* router id */
struct in_addr dr; /* designated router */
struct in_addr bdr; /* backup designated router */
struct iface *iface;
struct lsa_entry *ls_req;
struct lsa_entry *dd_end;
u_int32_t iface_id; /* id of neighbor's iface */
u_int32_t dd_seq_num;
u_int32_t dd_pending;
u_int32_t peerid; /* unique ID in DB */
u_int32_t ls_req_cnt;
u_int32_t ls_ret_cnt;
u_int32_t options;
u_int32_t last_rx_options;
u_int32_t link_options; /* options from link-LSA */
time_t uptime;
int state;
u_int8_t priority;
u_int8_t last_rx_bits;
u_int8_t dd_master;
u_int8_t dd_more;
u_int8_t dd_snapshot; /* snapshot running */
};
/* database.c */
int send_db_description(struct nbr *);
void recv_db_description(struct nbr *, char *, u_int16_t);
void db_sum_list_add(struct nbr *, struct lsa_hdr *);
int db_sum_list_del(struct nbr *, struct lsa_hdr *);
void db_sum_list_clr(struct nbr *);
void db_tx_timer(int, short, void *);
void start_db_tx_timer(struct nbr *);
void stop_db_tx_timer(struct nbr *);
/* hello.c */
int send_hello(struct iface *);
void recv_hello(struct iface *, struct in6_addr *, u_int32_t,
char *, u_int16_t);
/* ospfe.c */
pid_t ospfe(struct ospfd_conf *, int[2], int[2], int[2]);
void ospfe_dispatch_main(int, short, void *);
void ospfe_dispatch_rde(int, short, void *);
int ospfe_imsg_compose_parent(int, pid_t, void *, u_int16_t);
int ospfe_imsg_compose_rde(int, u_int32_t, pid_t, void *,
u_int16_t);
u_int32_t ospfe_router_id(void);
void ospfe_fib_update(int);
void ospfe_iface_ctl(struct ctl_conn *, unsigned int);
void ospfe_nbr_ctl(struct ctl_conn *);
void orig_rtr_lsa(struct area *);
void orig_net_lsa(struct iface *);
void orig_link_lsa(struct iface *);
void ospfe_demote_area(struct area *, int);
void ospfe_demote_iface(struct iface *, int);
/* interface.c */
int if_fsm(struct iface *, enum iface_event);
void if_del(struct iface *);
void if_start(struct ospfd_conf *, struct iface *);
int if_act_start(struct iface *);
int if_act_elect(struct iface *);
int if_act_reset(struct iface *);
struct ctl_iface *if_to_ctl(struct iface *);
int if_join_group(struct iface *, struct in6_addr *);
int if_leave_group(struct iface *, struct in6_addr *);
int if_set_mcast(struct iface *);
void if_set_sockbuf(int);
int if_set_mcast_loop(int);
int if_set_ipv6_pktinfo(int, int);
int if_set_ipv6_checksum(int);
/* lsack.c */
int delay_lsa_ack(struct iface *, struct lsa_hdr *);
int send_direct_ack(struct iface *, struct in6_addr, void *, size_t);
void recv_ls_ack(struct nbr *, char *, u_int16_t);
int lsa_hdr_check(struct nbr *, struct lsa_hdr *);
void ls_ack_list_add(struct iface *, struct lsa_hdr *);
void ls_ack_list_free(struct iface *, struct lsa_entry *);
void ls_ack_list_clr(struct iface *);
int ls_ack_list_empty(struct iface *);
void ls_ack_tx_timer(int, short, void *);
void start_ls_ack_tx_timer(struct iface *);
void stop_ls_ack_tx_timer(struct iface *);
/* lsreq.c */
int send_ls_req(struct nbr *);
void recv_ls_req(struct nbr *, char *, u_int16_t);
void ls_req_list_add(struct nbr *, struct lsa_hdr *);
int ls_req_list_del(struct nbr *, struct lsa_hdr *);
struct lsa_entry *ls_req_list_get(struct nbr *, struct lsa_hdr *);
void ls_req_list_free(struct nbr *, struct lsa_entry *);
void ls_req_list_clr(struct nbr *);
int ls_req_list_empty(struct nbr *);
void ls_req_tx_timer(int, short, void *);
void start_ls_req_tx_timer(struct nbr *);
void stop_ls_req_tx_timer(struct nbr *);
/* lsupdate.c */
int lsa_flood(struct iface *, struct nbr *, struct lsa_hdr *,
void *);
void recv_ls_update(struct nbr *, char *, u_int16_t);
void ls_retrans_list_add(struct nbr *, struct lsa_hdr *,
unsigned short, unsigned short);
int ls_retrans_list_del(struct nbr *, struct lsa_hdr *);
struct lsa_entry *ls_retrans_list_get(struct nbr *, struct lsa_hdr *);
void ls_retrans_list_free(struct nbr *, struct lsa_entry *);
void ls_retrans_list_clr(struct nbr *);
void ls_retrans_timer(int, short, void *);
void lsa_cache_init(u_int32_t);
struct lsa_ref *lsa_cache_add(void *, u_int16_t);
struct lsa_ref *lsa_cache_get(struct lsa_hdr *);
void lsa_cache_put(struct lsa_ref *, struct nbr *);
/* neighbor.c */
void nbr_init(u_int32_t);
struct nbr *nbr_new(u_int32_t, struct iface *, u_int32_t, int,
struct in6_addr *);
void nbr_del(struct nbr *);
struct nbr *nbr_find_id(struct iface *, u_int32_t);
struct nbr *nbr_find_peerid(u_int32_t);
int nbr_fsm(struct nbr *, enum nbr_event);
void nbr_itimer(int, short, void *);
void nbr_start_itimer(struct nbr *);
void nbr_stop_itimer(struct nbr *);
void nbr_reset_itimer(struct nbr *);
void nbr_adj_timer(int, short, void *);
void nbr_start_adj_timer(struct nbr *);
int nbr_act_reset_itimer(struct nbr *);
int nbr_act_start_itimer(struct nbr *);
int nbr_act_eval(struct nbr *);
int nbr_act_snapshot(struct nbr *);
int nbr_act_exchange_done(struct nbr *);
int nbr_act_adj_ok(struct nbr *);
int nbr_act_restart_dd(struct nbr *);
int nbr_act_delete(struct nbr *);
int nbr_act_clear_lists(struct nbr *);
int nbr_act_hello_check(struct nbr *);
struct ctl_nbr *nbr_to_ctl(struct nbr *);
struct lsa_hdr *lsa_hdr_new(void);
/* packet.c */
int gen_ospf_hdr(struct ibuf *, struct iface *, u_int8_t);
int upd_ospf_hdr(struct ibuf *, struct iface *);
int send_packet(struct iface *, struct ibuf *, struct in6_addr *);
void recv_packet(int, short, void *);
char *pkt_ptr; /* packet buffer */
#endif /* _OSPFE_H_ */
|
